A new analysis of data shows the medical community may need to rethink the optimal strategy for treating blood clots and bleeding in hospitalized COVID-19 patients. Patients with COVID-19 in the intensive care unit (ICU) prescribed full-dose blood thinners were significantly more likely to experience heavy bleeding than patients prescribed a smaller yet equally effective dose - nearly 1 in 7 COVID-19 patients in the ICU experienced severe bleeding when given full-dose blood thinners. Almost all patients who experienced significant bleeding were mechanically ventilated and receiving full-dose anticoagulants (blood thinners).

In the United States, flying cars have been almost here since the 1980s but, like Tubesat for personal satellites, it's basically involved a lot of money raised and no actual delivery. 

In Slovakia, a 1.6L BMW engine in a two-seat prototype has changed all that. After a successful demonstration last year, AirCar has performed 70 hours of flight testing compatible with European Aviation Safety Agency (EASA) standards, including over 200 takeoffs and landings. They even did it on autopilot. It can go from ground driving to air travel in under 3 minutes. 

Unless you see yourself as a human with a Dogecoin dog atop your neck, avatars are not very realistic. The lack of realism in the digital realms, combined with how tedious VR glasses are, means conferences, meetings and discussions with work colleagues are only slightly more advanced than conference calls of 40 years ago.

It could be a neutron star or it could be a white dwarf with an ultra-powerful magnetic field but something is releasing fantastic bursts of energy at periodic intervals.

When the burst happens, it is one of the brightest radio sources in the sky.

Objects that turn on and off aren’t new to astronomers, they're called ‘transients’, and they are the death of a massive star or the activity of the remnants it leaves behind. ‘Slow transients’, like supernovae, might appear over the course of a few days and disappear after a few months. ‘Fast transients’, like a type of neutron star called a pulsar, flash on and off within milliseconds or seconds.

As of now, 18 states have legalized recreational marijuana use while 36 have 'medical' cannabis laws but there is still debate about how cannabis may affect the abilities, real and perceived, of drivers under the influence.

A two-year randomized trial, conducted at the Center for Medicinal Cannabis Research (CMCR) at University of California San Diego School of Medicine hopes to add some science to the anecdotes. Researchers recruited 191 regular cannabis users to partake of cannabis containing different levels of delta-9-tetrahydrocannabinol (THC), the psychoactive compound in cannabis or a placebo immediately before a series of driving simulation tests over several hours.

Long before there were Israelites, Sumerians, or Egyptians in the world, the people living in Israel experienced a boom in food quantity and diversity, and a new study finds that the reason was climate change 23,000 years ago.

Ohalo II is a submerged archaeological site on the southern tip of the Sea of Galilee in Israel and in it are preserved extensive evidence of human occupation about 23,000 years ago. Climate change was a given, the world was exiting its latest periodic ice age. Humans diversified their dietary habits. Some have posited that the changes in food were due to decreasing food availability, while others suggest the change was thanks to increasing food abundance.